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Teasing apart socially-induced infertility in non-reproductive female Damaraland mole-rats, Fukomys damarensis (Rodentia:Bathyergidae)

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Integrative Zoology 2011年第4期6卷 311-320页

作者： Nigel c.bennett Department of Zoology and Entomology University of PretoriaPretoriaSouth Africa and Mammals ChairDepartment ofZoologyKing Saud UniversityRiyadhSaudi Arabia

The Damaraland mole-rat is a subterranean mammal exhibiting extreme reproductive skew with a single reproductive female in each colony responsible for ***-reproductive female colony members are physiologically suppressed while in the colony,exhibiting reduced concentrations of plasma luteinizing hormone(LH)and a decreased response of the pituitary,as measured by the release of bioactive LH,to an exogenous dose of gonadotrophin releasing hormone(GnRH).Removal of the reproductive female from the colony results in an elevation of LH and an enhanced response of the pituitary to a GnRH challenge in non-reproductive females comparable to reproductive females,implying control of reproduction in these individuals by the reproductive *** Damaraland mole-rat is an ideal model for investigating the physiological and behavioral mechanisms that regulate the hypothalamo-pituitary-gonadal *** contrast,we know less about the control of reproduction at the level of the *** immunohistochemistry of the GnRH system of both reproductive and non-reproductive female Damaraland mole-rats has revealed no significant differences with respect to morphology,distribution or numbers of immunoreactive GnRH *** examined whether the endogenous opioid peptide beta-endorphin was responsible for the inhibition of the release of the GnRH from the neurons indirectly by measuring LH concentrations in these non-reproductive females following single,hourly and 8 hourly injections of the opioid antagonist *** results imply that the endogenous opioid peptide,beta-endorphin,is not responsible for the inhibition of GnRH release from the perikarya in non-reproductive *** data examining the circulating levels of cortisol also do not support a role for circulating *** possible role of kisspeptin is discussed.

关键词： Bathyergidae mole-rat reproduction social suppression

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Seeing through the magnetite:Reassessing Eoarchean atmosphere composition from Isua(Greenland) ≥3.7 Ga banded iron formations

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Geoscience Frontiers 2017年第6期8卷 1233-1240页

作者： Allen P.Nutman Vickie c.bennett clark R.L.Friend GeoQuEST Research centre School of Earth and Environmental SciencesUniversity of WollongongWollongongNSW 2522Australia Research School of Earth Sciences Australian National UniversityCanberraACT 0200Australia Glendale TiddingtonOxonOX9 2LQUK

Estimates of early atmosphere compositions from metamorphosed banded iron formations(BIFs)including the well-studied ≥3.7 BIFs of the Isua supracrustal belt(Greenland)are dependent on knowledge of primary versus secondary Fe-mineralogical *** new observations from locally well preserved domains,we interpret that a previously assumed primary redox indicator mineral,magnetite,is secondary after sedimentary Fe-clays(probably greenalite)±*** ~3.7 Ga Isua BIF,pre-tectonic nodules of quartz+Fe-rich amphibole±calcite reside in a finegrained(≤100 μm)quartz+magnetite *** interpret the Isua nodule amphibole as the metamorphosed equivalent of primary Fe-rich clays,armoured from diagenetic oxidative reactions by early silica ***,in another low strain lacunae,~3.76 Ga BIF layering is not solid magnetite but instead fine-grained magnetite+quartz *** magnetite+quartz aggregates are interpreted as the metamorphosed equivalent of Fe-clay-rich layers that were oxidised during diagenesis,because they were not armoured by early *** almost all Isua BIF exposures,this evidence has been destroyed by strong ductile *** Fe-clays likely formed by abiotic reactions between aqueous Fe^(2+)and *** clays along with silica±carbonate were deposited below an oceanic Fe-chemocline as the sedimentary precursors of *** of the clays on the sea floor may have been by anaerobic oxidation of Fe^(2+),a mechanism compatible with iron isotopic data previously published on these *** new determinations of the primary redoxsensitive Fe-mineralogy of BIF significantly revise estimates of early Earth atmospheric oxygen and cO_2 content,with formation of protolith Fe-rich clays and carbonates compatible with an anoxic Eoarchean atmosphere with much higher cO_2 levels than previously estimated for Isua and in the present-day atmosphere.

关键词： Banded iron formation Eoarchean Early atmosphere Greenalite Magnetite

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The Pushtashan juvenile suprasubduction zone assemblage of Kurdistan (northeastern Iraq): A cretaceous (cenomanian) Neo-Tethys missing link

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Geoscience Frontiers 2017年第5期8卷 1073-1087页

作者： Sabah A.Ismail Sarmad A.Ali Allen P.Nutman Vickie c.bennett Brain G.Jones Department of Applied Geology College of Sciences Kirkuk University Kirkuk 36001 Iraq GeoQuEST Research centre School of Earth & Environmental Sciences University of Wollongong Wollongong NSW 2522 Australia Research School of Earth Sciences Australian National University ACT 0200 Australia

The Pushtashan suprasubduction zone assemblage of volcanic rocks, gabbros, norites and peridotites occurs in the Zagros suture zone, Kurdistan region, northeastern Iraq. Volcanic rocks are dominant in the assemblage and consist mainly of basalt and basaltic andesite flows with interlayered red shale and limestone horizons. Earlier lavas tend to be MORB-like, whereas later lavas display island arc tholeiite to boninitic geochemical characteristics. Tholeiitic gabbros intrude the norites and display fractionation trends typical of crystallisation under low-pressure conditions, whereas the norites display calc-alkaline traits, suggesting their source included mantle metasomatised by fluids released from subducted oceanic crust. Enrichment of Rb, Ba, Sr, Th and the presence of negative Nb anomalies indicate generation in a suprasubduction zone setting. Trondhjemite and granodiorite intrusions are present in the volcanic rocks, gabbros and norites. SHRIMP U-Pb dating of magmatic zircons from a granodiorite yields a mean^(206)Pb/^(238)U age of 96.0 ±2.0 Ma(cenomanian). The initial ε_(Hf) value for the zircons show a narrow range from +12.8 to+15.6, with a weighted mean of + 13.90±0.96. This initial value is within error of model depleted mantle at 96 Ma or slightly below that, in the field of arc rocks with minimal contamination by older continental crust. The compositional bimodality of the Pushtashan suprasubduction sequence suggests seafloor spreading during the initiation of subduction, with a lava stratigraphy from earlyerupted MORB transitioning into calc-alkaline lavas and finally by 96 Ma intrusion of granodioritic and trondhjemitic bodies with juvenile crustal isotopic signatures. The results confirm another cretaceous arc remnant preserved as an allochthon within the Iraqi segment of the cenozoic Zagros suture zone. Implications for the closure of Neo-Tethys are discussed.

关键词： Pushtashan suprasubduction assemblage cretaceous Zircon U-Pb dating Hf isotopes Kurdistan region lraq Neo-Terhys

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Neuroplasticity in post-stroke gait recovery and noninvasive brain stimulation

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Neural Regeneration Research 2015年第12期10卷 2072-2080页

作者： Yi Xu Qing-hua Hou Shawn D.Russell Bradford c.bennett Andrew J.Sellers Qiang Lin Dong-feng Huang Department of Rehabilitation Medicine the First Affiliated Hospital of Sun Yat-sen University Guangdong Provincial Engineering Technology Research center for Rehabilitation Medicine and clinical Translation Motion Analysis and Motor Performance Laboratory Department of Orthopedics and Mechanical EngineeringUniversity of Virginia Department of Neurology Guangdong No.2 Provincial People’s Hospital H.c Sweere center for clinical Biomechanics and Applied Ergonomics Northwestern Health Science University Department of Radiology Naval Medical Center Portsmouth

Gait disorders drastically affect the quality of life of stroke survivors,making post-stroke rehabilitation an important research *** brain stimulation has potential in facilitating neuroplasticity and improving post-stroke gait ***,a large inter-individual variability in the response to noninvasive brain stimulation interventions has been increasingly *** first review the neurophysiology of human gait and post-stroke neuroplasticity for gait recovery,and then discuss how noninvasive brain stimulation techniques could be utilized to enhance gait *** post-stroke neuroplasticity for gait recovery is characterized by use-dependent plasticity,it evolves over time,is idiosyncratic,and may develop maladaptive ***,noninvasive brain stimulation has limited reach capability and is facilitative-only in ***,we recommend that noninvasive brain stimulation be used adjunctively with rehabilitation training and other concurrent neuroplasticity facilitation ***,when noninvasive brain stimulation is applied for the rehabilitation of gait impairment in stroke survivors,stimulation montages should be customized according to the specific types of neuroplasticity found in each *** could be done using multiple mapping techniques.

关键词： nerve regeneration stroke cerebrovascular disorders transcranial magnetic stimulation neuroplasticity transcranial direct current stimulation electrical stimulation therapy gait walking gait disorders rehabilitation neural regeneration

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青少年安氏Ⅱ类1分类非拥挤错（牙合）的正畸治疗双期连续矫治

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丛书名：口腔开业医师临床指导丛书

2008年

作者： John c. bennett 丁云

全书主要内容包括：双期矫治的时机、病例选择、功能性矫治器的选择、固定矫治器的选择、功能矫治阶段的治疗、固定矫治阶段的治疗、矫治后的注意事项以及保持等。

ISBN: (纸本)9787509120903

关键词：医药、卫生口腔科学

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BRB90型和91型机车变压器的设计、结构和试验情况介绍

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机车电传动 1991年第6期 50-53页

作者： P.c.bennett 徐瑛

由于英国的两条南北干线铁路之间的地形不同,因而提出了两种机车任务书。一种机车命名为90型,最高结构速度为175km/h,用于加强西海岸干线运营;另一种机车命名为Electra 91型,最高结构速度为225km/h,主要用于东海岸干线。必要时这两种机... 详细信息

由于英国的两条南北干线铁路之间的地形不同,因而提出了两种机车任务书。一种机车命名为90型,最高结构速度为175km/h,用于加强西海岸干线运营;另一种机车命名为Electra 91型,最高结构速度为225km/h,主要用于东海岸干线。必要时这两种机车可运行于任一线路上,技术任务书中已反映了这种要求。这两种机车变压器的共同点是:二次牵引绕组和作为辅助电源的二次绕组布置、电气绝缘水平、采用A级绝缘材料、温升限值、冷却方式、以及带有储油柜和冷却系统的主变压器的整体结构均相同,

关键词：机车变压器设计结构电力机车

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INcOMMENSURATE PHASES IN cHARGEDENSITY WAVE SYSTEMS

INCOMMENSURATE PHASES IN CHARGEDENSITY WAVE SYSTEMS

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Sixteenth congress of the International Union of crystallography

作者： J.c bennett F.W.Boswell Dept of Physics University of AlbertaEdmontonABCanada T6G 1K7 Dept of Physics University of WaterlooWaterlooONCanada N2L 3G1

＜正＞charge-density waves（cDW）,a coupled modulation of the conduction electron density and crystal lautice,have been reported in a Iarge number of structurally anisotropic *** cDW modulations,which are in general incommensurate with the periodicity of the undistorted lauice,occur in materials encompassing a wide range of chemical and physical ***,in spite of lids diversity,

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连续型对称指数应用于健康青年女性矢状面下肢关节角度对称性的研究

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实用医学杂志 2017年第1期33卷 87-91页

作者：许轶王楚怀韩秀兰 Travis Simpson Bradford c. bennett Shawn D. Russell 中山大学附属第一医院康复科广州市510080 department of orthopedics and mechanical engineering motion analysis&motor performance laboratoryuniversity of virginiaCharlottesvilleVAUSA h.c sweere center for clinical biomechanics and ap-plied ergonomics northwestern health science universityBlooming-tonMNUSA

目的:检验应用新型连续型对称指数(cSI)检测健康青年女性矢状面下肢关节角度运动对称性的有效性。方法:选取22名健康青年女性随机先后于赤足(BF)或配穿普通运动鞋(NS)状态下以最适步行速度行三维步态测试,用cSI测定两种步行条件下矢状... 详细信息

目的:检验应用新型连续型对称指数(cSI)检测健康青年女性矢状面下肢关节角度运动对称性的有效性。方法:选取22名健康青年女性随机先后于赤足(BF)或配穿普通运动鞋(NS)状态下以最适步行速度行三维步态测试,用cSI测定两种步行条件下矢状面双下肢髋、膝、踝关节角度及三关节角度的综合对称性情况。结果:22例受试者矢状面下肢关节角度cSI在两种步行条件下均升高,髋、膝关节独立cSI及三关节综合cSI两种状态间差异无显著统计学意义;而踝关节独立cSI(BF:7.6±3.5;NS:9.5±2.8)两种状态间的差异存在显著统计学意义(P=0.013)。结论:健康女性步行时矢状面下肢关节活动存在双侧不对称;cSI指数是步态对称性检测的有效方法。

关键词：对称性连续型对称指数三维步态生物力学

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再压缩蒸发

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中国井矿盐 1986年第6期 31-34页

作者： R.c.bennett 黄荣琼李源

由于工艺蒸汽价格上涨,因此需要使用节省费用的技术,例如机械的再压缩方法。蒸发是最古老的操作单元之一,而且除了少数例外,是一种能量最密集的操作单元之一。广泛地采用这种工艺的工业,习惯上依靠低成本的蒸汽——以透平的废气或燃烧... 详细信息

由于工艺蒸汽价格上涨,因此需要使用节省费用的技术,例如机械的再压缩方法。蒸发是最古老的操作单元之一,而且除了少数例外,是一种能量最密集的操作单元之一。广泛地采用这种工艺的工业,习惯上依靠低成本的蒸汽——以透平的废气或燃烧付产品产生的废热的形式。在大多数早期的化学工厂

关键词：二次蒸汽再压缩蒸发罐

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桔子汁中山梨酸和苯甲酸钠的定量测定

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江苏食品与发酵 1981年第1期 53-56页

作者： M. c. bennett D. R. Petrus 陈葆新

本文提出了对桔子汁中两种常用的食品添加剂,微克量的山梨酸和苯甲酸钠,用阴离子交换柱的高压液相色谱仪(HPLc)的测定法。溶解在缓冲液中的上述化合物从柱内流出后,用可变波长的分光光度计检测。两种成分可同时测定。样品的制备只需离... 详细信息

本文提出了对桔子汁中两种常用的食品添加剂,微克量的山梨酸和苯甲酸钠,用阴离子交换柱的高压液相色谱仪(HPLc)的测定法。溶解在缓冲液中的上述化合物从柱内流出后,用可变波长的分光光度计检测。两种成分可同时测定。样品的制备只需离心和过滤,而HPLc的分析不到10分钟时间。用紫外吸收和磷光测定器确证的结果正确,能重复。加料量在一般范围内的桔汁样品,测定值的误差在5％以内。

关键词：苯甲酸钠 HPLc 测定法磷光紫外吸收桔汁取代苯类杀菌剂发光山梨酸盐桔子

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